Februar 27, 2012

Ein einfacher Video(Webcam) to ASCI converter: code:

import processing.video.*;
Capture myCapture;
int pixel= 10;
PFont myFont;

void setup()

{
  size(1280, 720);
  String s = "IIDC FireWire Video";
  //println(Capture.list());
  myCapture = new Capture(this, width, height,s,25);
  // Set the frameRate to read 4 new images per second
  myCapture.frameRate(25);
  myFont = createFont("FrutigerLTCom-Light-48.vlw", pixel);
}

void draw() {
  background(0);
  if (myCapture.available()) {
    myCapture.read();
  }

  //image(myCapture, 0, 0);
  // println(Capture.list());
  for (int y = 0; y  {
    for (int x = 0; x < width; x+=pixel)
    {

      color c = getAvarageColor(myCapture, x, y, pixel, pixel);
      int bright = int(brightness(c));
      int fontChar = int(map(bright, 0, 255, 0, 7));
      int fontSize = int(map(bright, 0, 255, pixel, pixel*1.5));
      //println(fontSize);
      noStroke();
      fill(255);
      textFont(myFont,fontSize);
      switch(fontChar) {
      case 0:
        text(".", x, y);
        break;
      case 1:
        text("°", x, y);
        break;
      case 2:
        text("^", x, y);
        break;
      case 3:
        text("o", x, y);
        break;
      case 4:
        text("b", x, y);
        break;
      case 5:
        text("A", x, y);
        break;
        case 6:
        text("B", x, y);
        break;
        case 7:
        text("O", x, y);
        break;
      }
    }
  }
}

color getAvarageColor(Capture _img, int _posX, int _posY, int _w, int _h)
{
  int vR = 0;
  int vG = 0;
  int vB = 0;
  for (int y=_posY; y  {
    for (int x=_posX; x    {
      vR += red(_img.get(x, y));
      vG += green(_img.get(x, y));
      vB += blue(_img.get(x, y));
    }
  }
  return(color(vR/(_w*_h), vG/(_w*_h), vB/(_w*_h)));
}